curlopt_verbose(3)

CURLOPT_VERBOSE – set verbose mode on/off

Synopsis

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_VERBOSE, long onoff);

Description

Set the onoff parameter to 1 to make the library display a lot of verbose information about its operations on this handle. Very useful for libcurl and/or protocol debugging and understanding. The verbose information will be sent to stderr, or the stream set with CURLOPT_STDERR(3).

You hardly ever want this set in production use, you will almost always want this when you debug/report problems.

To also get all the protocol data sent and received, consider using the CURLOPT_DEBUGFUNCTION(3).

Default

0, meaning disabled.

Protocols

All

Example

CURL *curl = curl_easy_init();
if(curl) {
 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
 /* ask libcurl to show us the verbose output */
 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 /* Perform the request */
 curl_easy_perform(curl);
}

Availability

Always

Return Value

Returns CURLE_OK